Rappers' skill is the ability to create and perform RHYMES. This is an essential part of hip-hop culture, as it allows rappers to express themselves through their lyrics. Rhyming is a form of wordplay that involves creating lines with similar sounds or syllables. It is often used to emphasize certain words or phrases, and can be used to create a sense of rhythm and flow in a song. Rhyming is an important skill for any rapper, as it helps them to create memorable and catchy lyrics.